323141440440 has 128 divisors (see below), whose sum is σ = 1193137666560. Its totient is φ = 68179290624.

The previous prime is 323141440387. The next prime is 323141440469. The reversal of 323141440440 is 44044141323.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 323141440398 and 323141440407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14784934 + ... + 14806773.

It is an arithmetic number, because the mean of its divisors is an integer number (9321388020).

Almost surely, 2^323141440440 is an apocalyptic number.

323141440440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

323141440440 is an abundant number, since it is smaller than the sum of its proper divisors (869996226120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323141440440 is a wasteful number, since it uses less digits than its factorization.

323141440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29591741 (or 29591737 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 323141440440 its reverse (44044141323), we get a palindrome (367185581763).

The spelling of 323141440440 in words is "three hundred twenty-three billion, one hundred forty-one million, four hundred forty thousand, four hundred forty".